恐龍卡第 0774 張，共 2 027 張

Hainosaurus

名字的意思： “lizard from the Haine River”1

吃：肉滄龍類白堊紀晚期嚴格來說不是恐龍

Hainosaurus was a huge marine lizard that ruled the Late Cretaceous seas. It was one of the biggest mosasaurs, growing up to 12 metres (40 feet) long. This powerful predator ate turtles, plesiosaurs, sharks, and even other mosasaurs.1

趣味小知識：這種海生爬蟲類在海裡游泳的時候，恐龍正在陸地上走路。大家都叫牠們恐龍，但牠們其實是爬蟲類的另一個分支。

生存年代

84 到 66 百萬年前4

白堊紀晚期

化石發現地

Belgium, Sweden, Germany, Poland, France, Russia, and South Dakota (USA)4 1

長度

12.2 到 17 m (40 到 56 ft)1

最高速度

時速約 26 公里（16 英里）

游泳, 估計值

牠生活在什麼時候？

三疊紀

侏羅紀

白堊紀

2 億 5200 萬年前20114566，小行星撞地球

牠有多大？

牠有多長？

跟 4 台汽車排成一排一樣長跟 94 根香蕉頭尾相接一樣長能在 6.9 秒內游完一座大泳池（50 公尺）

Hainosaurus 跟「你」比起來有多大？

只是在你的瀏覽器裡算算數學。什麼都不會被儲存或傳送出去。

牠有多快？

走路的人 時速約 5 公里 (3 mph)

騎腳踏車的小朋友 時速約 12 公里 (7 mph)

Hainosaurus 時速約 26 公里 (16 mph)

一匹飛奔的馬 時速約 65 公里 (40 mph)

一隻獵豹 時速約 100 公里 (62 mph)

酷東西

趣味知識

Hainosaurus had more vertebrae in its neck and trunk (53) than its close relative Tylosaurus (35).1

Its tail was shorter than Tylosaurus's because it had fewer vertebrae with chevron bones.1

The first Hainosaurus fossil was discovered by a worker in a phosphate quarry in Belgium in 1885. The worker sold the eight vertebrae he found to a museum.1

Some scientists think Hainosaurus might actually be a species of Tylosaurus, but others keep it as a separate genus because of differences in its teeth.1

Hainosaurus lived during the Campanian and Maastrichtian ages, about 84 to 66 million years ago.4

Isolated teeth of Hainosaurus have been found in southern Sweden, showing it lived in the ancient seas that covered that area.2

Hainosaurus 的 AI 繪圖 — 這是電腦根據科學家目前的知識，用 AI 畫出 Hainosaurus 可能的樣子。這只是猜測：真正的動物可能長得不一樣，也沒有人知道牠真正的顏色。

你們都在問

關於 Hainosaurus 最常被問的問題

?How big was Hainosaurus?

Hainosaurus was one of the largest mosasaurs, reaching up to about 12.2 metres (40 feet) long, though earlier estimates were larger.1 3

?What did Hainosaurus eat?

It ate turtles, plesiosaurs, pterosaurs, cephalopods, sharks, fish, and smaller mosasaurs. A Belgian specimen had swallowed part of a giant turtle.1 3

?Was Hainosaurus a dinosaur?

No, Hainosaurus was a marine lizard belonging to the mosasaur family, not a dinosaur.1

?Where was Hainosaurus found?

The first fossil was found in a phosphate quarry in Belgium in 1885. Fossils have also been found in Canada, Sweden, France, England, and Poland.1 3

給恐龍專家

學名: Hainosaurus
命名者: Dollo 18854
類群: 滄龍類
科 / 演化支: Mosasauridae4
分類: Mosasauroidea4
岩石的年代: 84 到 66 百萬年 (Campanian / Maastrichtian)4
岩層: Opoka, Kopinge Sandstone, Pierre Shale4
國家: 瑞典, 德國, 波蘭, 法國, 俄羅斯, 美國4
化石紀錄: The Paleobiology Database 收錄 16 筆4
發現: Louis Dollo named Hainosaurus in 1885 based on a near-complete skeleton found in a phosphate quarry near the Haine River in Belgium. The skeleton was excavated with the help of an industrialist named Leopold Bernard, after whom the species H. bernardi was named.1
仍有爭議: Scientists still debate whether Hainosaurus is a distinct genus or should be considered a species of Tylosaurus.1